EP2559426B1 - Wasser-in-öl-emulsionsverbindung - Google Patents

Wasser-in-öl-emulsionsverbindung Download PDF

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Publication number
EP2559426B1
EP2559426B1 EP11768811.9A EP11768811A EP2559426B1 EP 2559426 B1 EP2559426 B1 EP 2559426B1 EP 11768811 A EP11768811 A EP 11768811A EP 2559426 B1 EP2559426 B1 EP 2559426B1
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Prior art keywords
oil
ultraviolet absorber
water
mass
soluble ultraviolet
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French (fr)
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EP2559426A2 (de
EP2559426A4 (de
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Yuko Nagare
Kazuhiro Yamaguchi
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Shiseido Co Ltd
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Shiseido Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
    • A61K8/4966—Triazines or their condensed derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27—Zinc; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations

Definitions

  • the present invention relates to a water-in-oil emulsion composition, and more particularly, to a water-in-oil emulsion composition containing an oil-soluble ultraviolet absorber in an internal phase (water phase), and having a high stability and ultraviolet protection ability.
  • Sunscreen cosmetics are intended to block ultraviolet rays in the sunlight to protect the skin from adverse effects of ultraviolet rays.
  • an ultraviolet scattering agent such as particulate zinc oxide needs to be blended.
  • some problems arise such that the resultant product causes squeaky feeling in sense of use and that the skin to which the resultant product is applied becomes unnaturally white.
  • oil-soluble ultraviolet absorbers such as 2,4-bis- ⁇ [4-(2-ethylhexyloxy)-2-hydroxy]phenyl ⁇ -6-(4-methoxyphenyl)-(1, 3, 5)-triazine (hereinafter, referred to as "bis-ethylhexyloxyphenol methoxyphenyl triazine" in the present specification) have a high ultraviolet protective effect; however, most of the oil-soluble ultraviolet absorbers are less soluble, which caused a stability problem in some cases such that an ultraviolet absorber precipitated in an oil phase at a low temperature.
  • Patent Document 1 describes that a less soluble ultraviolet absorber is encapsulated in spherical polymer particles formed of styrene or the like and made into a spherical powder, with the result that solubility in oil is improved to attain a high content in an oil phase; however, cases where the ultraviolet absorber are blended in a water phase are not known.
  • Non-Patent Document 1 relates to polymer dispersions of encapsulated organic UV filters in personal care.
  • the publication discloses a number of water-in-oil emulsions comprising, among others, an aqueous dispersion of a polymer having an organic UV absorber encapsulated therein (UV-NCAP), a polyoxyalkylene-modified polysiloxane and an oil-soluble UV absorber (UV SOL), wherein the organic UV absorber dispersed in the water phase may include bis-ethylhexyloxyphenol methoxyphenyl triazine.
  • UV-NCAP organic UV absorber encapsulated therein
  • UV SOL oil-soluble UV absorber
  • Non-Patent Document 2 teaches suncare compositions comprising multiple organic UV filters.
  • a water-in-oil emulsion (“W/Si Natural Foundation Veil”) comprising, among others, a water-soluble UV absorber (UV WAT), a polyoxyalkylene-modified polysiloxane, UV scattering agents, a water-swelling clay material in combination with a quaternary ammonium salt type cation surfactant, and an oil-soluble UV absorber (UV SOL) is disclosed, wherein the water-soluble UV absorber may include bis-ethylhexyloxyphenol methoxyphenyl triazine.
  • an object of the present invention is to provide a water-in-oil emulsion composition which contains an oil-soluble ultraviolet absorber having a low solubility, and has good sense of use and also an excellent ultraviolet absorption ability and stability.
  • the present invention provides a water-in-oil emulsion composition containing:
  • the water-in-oil type emulsion composition of the present invention containing an ultraviolet absorber less soluble in oil in an internal phase (water phase) provides an improved stability of the system. Furthermore, the water-in-oil emulsion composition can exert an advantageous effect of improving ultraviolet protection ability, compared to that containing the same ultraviolet absorber in an oil phase (external phase). Moreover, since water-in-oil emulsion composition of the present invention contains an ultraviolet scattering agent only in a predetermined amount or less, good sense of use is attained without causing squeaky feeling and in addition a high ultraviolet protection ability and excellent stability can be obtained.
  • Figure 1 is a chart showing ultraviolet absorption spectra of the compositions of Examples 1 and 2 and Comparative Examples 1 and 2.
  • the water-in-oil emulsion composition of the present invention contains an aqueous dispersion of an oil-soluble ultraviolet absorber (component a) in an internal phase (water phase).
  • component a oil-soluble ultraviolet absorber
  • the oil-soluble ultraviolet absorber is insoluble in water and less soluble in oil. Substances substantially insoluble in oil such as methylene bis-benzotriazole tetramethylbutyl phenol, are not included. If an oil-in-water emulsion composition is prepared using a water dispersion of an ultraviolet absorber insoluble in oil and applied to the skin, the resultant skin sometimes looks unnaturally white.
  • the less-soluble ultraviolet absorber is a triazine derivative, namely bis-ethylhexyloxyphenol methoxyphenyl triazine.
  • the bis-ethylhexyloxyphenol methoxyphenyl triazine is commercially available from BASF under the trade name of Tinosorb S, and the commercially available product can be used.
  • the aqueous dispersion of an oil-soluble ultraviolet absorber as used in the present invention is an aqueous dispersion of composite particles of an oil-soluble ultraviolet absorber and an organic polymer.
  • a water phase containing the aqueous dispersion is present together with an oil, the incorporation of the oil-soluble ultraviolet absorber into the composite particles suppress the dissolution of the oil-soluble ultraviolet absorber in the water phase into the oil phase.
  • aqueous dispersion of composite particles of an oil-soluble ultraviolet absorber and an organic polymer can be prepared, for example, in accordance with a method described in WO2009/007264 .
  • emulsion polymerization is performed in the state of dispersing a mixture of an ultraviolet absorber and an organic monomer in water to obtain an aqueous dispersion having composite particles of the ultraviolet absorber and an organic polymer dispersed therein.
  • a monomer having an ethylenic unsaturated bond such as acrylic acid, methacrylic acid, an alkyl acrylate, an alkyl methacrylate, a styrene monomer and a nylon monomer, is preferably used.
  • Tinosorb S aqua contains composite particles of bis-ethylhexyloxyphenol methoxyphenyl triazine (Tinosorb S) and polymethylmethacrylate (PMMA) dispersed in water.
  • the contents of bis-ethylhexyloxyphenol methoxyphenyl triazine and PMMA are 20 % by mass and 19 % by mass, respectively.
  • the content of the oil-soluble ultraviolet absorber in the composition of the present invention is 0.01 to 5 % by mass, and preferably 0.01 to 3 % by mass, on a dry mass basis. If the content is less than 0.01 % by mass, a sufficient ultraviolet absorption ability cannot be obtained; whereas, if the content is beyond 5 % by mass, it tends to cause a problem in sense of use, such as greasiness.
  • an aqueous dispersion (component a) contains 20 % by mass of the ultraviolet absorber, the content in terms of the aqueous dispersion is 25 % by mass or less, preferably 15 % by mass or less, and more preferably 0.05 to 15 % by mass.
  • the water-in-oil emulsion composition of the present invention contains a polyoxyalkylene modified polysiloxane having a molecular weight of 2000 or more as an emulsifier.
  • Examples of the polyoxyalkylene modified polysiloxane to be used in the present invention include a POE-methyl polysiloxane copolymer, a silicone chain branched type POE-methyl polysiloxane copolymer, a crosslinked type POE-methyl polysiloxane copolymer, an alkyl-POE co-modified methyl polysiloxane copolymer and a silicone chain branched type alkyl-POE co-modified methyl polysiloxane copolymer.
  • ABIL EM90 of Evonik Goldschmidt GmbH, KF-6017, KF-6028, KF-6038 of Shin-Etsu Chemical Co., Ltd. and BY22-008 M, BY11-030 and 5200 Formulation Aid of Dow Corning Toray Co., Ltd. are preferably used.
  • the polyoxyalkylene modified polysiloxane has a molecular weight of 2000 or more, and suitably 6000 or more.
  • the upper limit of the molecular weight of the polyoxyalkylene modified polysiloxane in the present invention is not particularly limited; however, it is usually about 8000 or less.
  • An emulsion composition of the present invention may contain one or two or more polyoxyalkylene modified polysiloxanes having a molecular weight of 2000 or more, and suitably 6000 or more (hereinafter referred to as a "polyoxyalkylene modified polysiloxane having a specified molecular weight").
  • the addition amount of polyoxyalkylene modified polysiloxane having a specified molecular weight is preferably 7.5 % by mass or less, more preferably 5 % by mass or less, and further preferably 0.01 to 3 % by mass usually based on the composition. If the addition amount is less than 0.01 % by mass, it is sometimes difficult to sufficiently perform water-in-oil emulsification; whereas, if the addition amount is beyond 7.5 % by mass, it is confirmed that the resultant emulsion composition tends to deteriorate in the sense of use, causing greasiness.
  • an ultraviolet scattering agent is further blended in a predetermined amount or less, an ultraviolet blocking effect can be further improved.
  • particulate zinc oxide and/or particulate titanium dioxide is preferably used.
  • particulate zinc oxide having an average particle size of 0.1 ⁇ m or less (the lower limit of the average particle size is not particularly limited; however, it is usually about 30 nm) generally used in external use compositions such as cosmetics, is preferable and can be produced by a conventional method such as the French method or the American method and a commercially available product may also be used.
  • Examples of the commercially available particulate zinc oxide include FINEX-25, FINEX-50 and FINEX-75 (manufactured by Sakai Chemical Industry Co., Ltd.), ZnO350 (manufactured by Sumitomo Osaka Cement Co., Ltd.), ZINCOX SUPER-10, ZINCOX SUPER-20R, ZINCOX SUPER-30 and ZINCOX CP-1 (manufactured by HakusuiTech Co., Ltd.); Z-COTE (manufactured by SunSmart); and MZ-500 and MZ-700 (manufactured by Tayca Corp.).
  • the particulate titanium dioxide used herein is particulate titanium dioxide having an average particle size of 0.1 ⁇ m or less (the lower limit of the average particle size is not particularly limited; however, it is usually about 30 nm) generally used in external use compositions such as cosmetics, and can be produced by a conventional method such as the sulfuric acid method or the chlorine method and a commercially available product may also be used.
  • the commercially available particulate titanium dioxide include SIV series, TTO-55 series and TTO-S series (manufactured by Ishihara Sangyo Kaisha, Ltd.); and MT-100TV, MT-500V and MT-01 (manufactured by Tayca Corp).
  • the ultraviolet scattering agent e.g., particulate zinc oxide and particulate titanium dioxide
  • the ultraviolet scattering agent is preferably a hydrophobized powder prepared by hydrophobizing the surface of particles.
  • Examples of a hydrophobizing agent for producing the hydrophobized powder include, but not particularly limited to, a silicone processing agent, a fatty acid, a fatty acid soap and a fatty acid ester.
  • the silicone processing agent include various types of silicone oils such as methyl hydrogen polysiloxane, dimethylpolysiloxane and methylphenyl polysiloxane; various types of alkyl silanes such as methyl trimethoxysilane, ethyl trimethoxysilane, hexyl trimethoxysilane and octyl trimethoxysilane; and various types of fluoroalkyl silanes such as trifluoromethylethyl trimethoxysilane and heptadecafluorodecyl trimethoxysilane.
  • examples of the fatty acids include palmitic acid, isostearic acid, stearic acid, lauric acid, myristic acid, behenic acid, oleic acid, rosin acid and 12-hydroxystearic acid.
  • examples of the fatty acid soap include aluminum stearate, calcium stearate and aluminum 12-hydroxystearate.
  • examples of the fatty acid ester include dextrin fatty acid ester, cholesterol fatty acid ester, sucrose fatty acid ester and starch fatty acid ester.
  • particulate metal oxide powders having an ultraviolet blocking effect other than the particulate zinc oxide or particulate titanium dioxide such as particulate iron oxide, particulate cerium oxide and particulate tungsten oxide, preferably those processed with hydrophobizing treatment, can be blended as an ultraviolet scattering agent in the emulsion composition of the present invention.
  • the content of the ultraviolet scattering agent in the emulsion composition of the present invention is 5 % by mass or less, preferably 3 % by mass or less, and further preferably 2 % by mass or less based on the composition.
  • the water-in-oil emulsion composition of the present invention is more improved in ultraviolet protective effect by blending an oil-soluble (less soluble) ultraviolet absorber in the internal phase (water phase) in the form of an aqueous dispersion.
  • the effect is also sufficient without addition of the ultraviolet scattering agent.
  • the emulsion composition of the present invention may or may not contain an ultraviolet scattering agent. Even if the US scattering agent is contained, the content thereof can be suppressed. Thus, a problem in sense of use such as squeaky feeling is not caused.
  • the emulsion composition of the present invention is improved in emulsion stability by blending a water-swelling clay mineral in combination with a quaternary ammonium salt type cation surfactant.
  • organic modified clay mineral refers to the organic modified clay mineral defined above.
  • a method for preparing an organic modified clay mineral is described in detail in, e.g., Japanese Patent Laid-open No. 2-14098 . The outline thereof will be described below.
  • a water-swelling clay mineral is a type of colloid-containing aluminum silicate having a trilaminar structure and generally represented by the following formula (1).
  • water-swelling clay mineral examples include bentonite, smectite, montmorillonite, beidellite, nontronite, saponite and hectorite. These may be either one of a natural product and a synthetic product.
  • examples of commercially available products include, Kunipia (manufactured by Kunimine Industries Co., Ltd.), Smecton (manufactured by Kunimine Industries Co., Ltd.), VEEGUM (manufactured by Vanderbilt Company, Inc.), Laponite (manufactured by Laporte) and fluoro-tetrasilisic mica (manufactured by TOPY Industries Ltd.).
  • the surfactants represented by the following formula (2) are preferably used.
  • R 5 represents an alkyl group having 10 to 22 carbon atoms or a benzyl group
  • R 6 represents a methyl group or an alkyl group having 10 to 22 carbon atoms
  • R 7 and R 8 represent an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms
  • A represents a halogen atom or a methyl sulfate residue.
  • quaternary ammonium salt type cation surfactant examples include dodecyl trimethyl ammonium chloride, myristyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, arachyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, cetyl dimethyl ammonium chloride, stearyl dimethyl ammonium chloride, arachyl dimethyl ammonium chloride, behenyl dimethyl ammonium chloride, cetyl diethyl ammonium chloride, stearyl diethyl ammonium chloride, arachyl diethyl ammonium chloride, behenyl diethyl ammonium chloride, benzyl dimethyl myristyl ammonium chloride, benzyl dimethyl cetyl ammonium chloride, benzyl dimethyl stearyl ammonium chloride, benzyl dimethyl behenyl ammonium chlor
  • quaternary ammonium salt type cation surfactants are each preferably used within the range of 60 to 140 mm equivalent based on the water-swelling clay mineral (100 g) as mentioned above. If the content of the quaternary ammonium salt type cation surfactant is less than 60 mm equivalent, emulsification cannot be favorably performed; whereas, if the content is beyond 140 mm equivalent, it is confirmed that stability of the composition over time tends to deteriorate.
  • organic modified clay mineral thus obtained, a commercially available product can also be used.
  • BENTONE 38 manufactured by Elementis Specialties
  • BENTONE 38 manufactured by Elementis Specialties
  • the content of the water-swelling clay mineral and the quaternary ammonium salt type cation surfactant in the emulsion composition is preferably 0.1 to 10 % by mass and particularly preferably 1 to 5 % by mass.
  • emulsion stability thereof can be further improved.
  • the nonionic surfactant to be used in this embodiment is a nonionic surfactant having an HLB value of preferably 2 to 16, and particularly preferably 3 to 12.
  • ether surfactants such as polyoxyethylene (2 to 30 moles) added [hereinafter, sometimes expressed as POE (2 to 30)] oleyl ether, POE (2 to 35) stearyl ether, POE (1 to 20) alkyl phenyl ether, POE (6 to 18) behenyl ether, POE (5 to 25) 2-decylpentadecyl ether, POE (3 to 30) 2-decyltetradecyl ether and POE (8 to 16) 2-octyldecyl ether; ester surfactants such as POE (4 to 60) hydrogenated castor oil, POE (3 to 14) fatty acid monoester , POE (6 to 30) fatty acid diester and POE (5 to 20) sorbitan fatty acid ester; ether ester surfactants such as POE (2 to 30) glyceryl monoisostearate, POE (10 to 60) glyceryl triisostearate, POE (7 to 50)
  • the fatty acid in a liquid state at a normal temperature is not particularly limited as long as it is a fatty acid which can be contained in an external use composition, etc.
  • examples thereof include oleic acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid and docosahexaenoic acid.
  • One or two or more fatty acids selected from these may be blended.
  • the higher alcohol in the liquid state at a normal temperature is not particularly limited as long as it is higher alcohol which can be contained in an external use composition, etc.
  • examples thereof include oleyl alcohol, isostearyl alcohol, octyl dodecanol, decyl tetradecanol and jojoba alcohol.
  • One or two or more higher alcohols selected from these may be blended.
  • the nonionic surfactant, and/or fatty acid in the liquid state at a normal temperature and/or higher alcohol in the liquid state at a normal temperature is/are preferably contained in a mass ratio within the range of 0.01 to 5, and further preferably within the range of 0.05 to 4 based on the water swelling clay mineral as mentioned above. If the mass ratio is less than 0.01, emulsification is not favorably performed in many cases. Conversely, if the mass ratio is beyond 5, it is confirmed that stability of the composition over time tends to deteriorate.
  • the emulsion composition of the present invention further contains another ultraviolet absorber in addition to the aforementioned aqueous dispersion of an oil-soluble ultraviolet absorber (component a) to be added to a water phase.
  • component a oil-soluble ultraviolet absorber
  • the other ultraviolet absorber is oil-soluble and dissolved in an oil phase (external phase), and preferably absorbs ultraviolet synergistically with the ultraviolet absorber (component a) present in a water phase.
  • the other ultraviolet absorber is selected from the group consisting of 2-ethylhexyl paramethoxycinnamate, homosalate, octyl salicylate, oxybenzone, 4-t-butyl-4'-methoxydibenzoylmethane, octyl triazone, methylene bis-benzotriazolyl tetramethylbutyl phenol, 2-hydroxy-4-methoxybenzophenone, dihydroxydimethoxybenzophenone, dihydroxybenzophenone, tetrahydroxybenzophenone, hexyl diethylamino hydroxybenzoyl benzoate, 2-cyano-3,3-diphenylacrylic acid 2'-ethylhexyl ester, polysilicone-15 and drometrizole polysiloxane.
  • emulsion composition of the present invention in addition to the aforementioned components, other components which can be usually used in external use composition such as cosmetics can be contained as long as it does not substantially suppress a desired effect of the present invention.
  • the oil which can be contained in the emulsion composition of the present invention is not particularly limited and for example, the following substances may be included.
  • silicone oil examples include linear polysiloxanes (e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane); cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane), silicone resins forming a three-dimensional network structure, silicone rubbers, and various types of modified polysiloxanes (e.g., amino modified polysiloxane, polyether modified polysiloxane, alkyl modified polysiloxane, fluorine modified polysiloxane).
  • linear polysiloxanes e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane
  • cyclic polysiloxanes e.g., o
  • liquid fat and oil examples include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, bean oil, peanut oil, tea seed oil, Japanese nutmeg oil, rice bran oil, China wood oil, Japanese tung oil, jojoba oil, germ oil and triglycerin.
  • avocado oil camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, bean oil, peanut oil, tea seed oil, Japanese nutmeg oil, rice bran
  • Examples of a solid fat and oil include cacao butter, coconut oil, horse fat, hardened coconut oil, palm oil, beef tallow, mutton tallow, hardened beef tallow, palm kernel oil, lard, beef bone fat, Japan wax kernel oil, hardened oil, cow leg fat, Japan wax and hydrogenated castor oil.
  • Examples of a wax include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, Ibota wax, whale wax, montan wax, rice bran wax, lanolin, kapok wax, acetated lanolin, liquid lanolin, sugarcane wax, isopropyl lanolate, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol and POE hydrogenated lanolin alcohol ether.
  • hydrocarbon oil examples include liquid paraffin, ozocerite, squalane, pristane, paraffin, ceresin, squalene, vaseline and microcrystalline wax.
  • Examples of a higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall oil acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
  • Examples of a higher alcohol include linear alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol); and branched alcohols (e.g., monostearyl glyceryl ether (batyl alcohol), 2-decyl tetradecynol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol).
  • linear alcohols e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol
  • branched alcohols e.g., monostearyl glyceryl ether (batyl alcohol), 2-decyl tetradecynol, lanolin alcohol, cholesterol, phytosterol,
  • Examples of a synthetic ester oil include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyl octanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptyl undecanoate, trimethylolpropane tri-2
  • examples of the powder component which can be contained in the emulsion composition of the present invention include inorganic powders (e.g., talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, lepidolite, biotite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, a tungstic acid metal salt, magnesium, silica, zeolite, barium sulfate, a baked calcium sulfate (calcined gypsum), calcium phosphate, fluorine apatite, hydroxy apatite, ceramic powder, boron nitride) metallic soap (e.g., zinc myristate, calcium palmitate, aluminum stearate); organic powders (e.g., a polyamide resin powder (nylon powder), a polyethylene powder, a polymethyl methacrylate powder, a poly(
  • a surfactant expect the aforementioned nonionic surfactants, a moisturizing agent, a thickening agent, a sequestering agent, a lower alcohol, a polyhydric alcohol, sugar, an amino acid, an organic amine, a polymer emulsion, a pH adjuster, a skin nutrient, a vitamin, an antioxidant, an auxiliary antioxidant, a fragrance and water, if necessary, are appropriately blended to be able to produce the present emulsion composition in accordance with a desired dosage by a conventional method.
  • Water-in-oil emulsion compositions having compositions shown in the following Tables 1 and 2 were prepared. To describe more specifically, an oil-phase portion except cation modified bentonite and a powder was heated to 70°C to be homogeneously dissolved. In the oil-phase portion, the cation modified bentonite was dispersed by a homomixer, and thereafter, various types of hydrophobized powders and other powders were added and dispersed by a homomixer. Separately a water phase portion was prepared and gradually added to the oil-phase portion prepared as described above and emulsified by use of a homomixer. The resultant emulsion composition was degassed and charged in a predetermined container to prepare each sample.
  • Tables 1 and 2 Water-in-oil emulsion compositions having compositions shown in the following Tables 1 and 2 were prepared. To describe more specifically, an oil-phase portion except cation modified bentonite and a powder was heated to 70°C to be homogeneously
  • each of the samples prepared was placed in a 50 mL screw tube, and a small amount of bis-ethylhexyloxyphenol methoxyphenyl triazine was added thereto in a solid state.
  • Each of the mixtures after being stored at 0°C for one week, was observed by a microscope to evaluate stability of the oil phases.
  • each of the obtained compositions was evaluated with regard to sense of use by 10 female panelists in accordance with the following criteria.
  • Each of the samples was actually applied to their skin in order to evaluate the sense of use (absence of squeaky feeling). The results are collectively shown in Table 1.
  • a sample (18.87 ⁇ L) was taken from each of the compositions of Examples 1 and 2 and Comparative Example 1 and 2 and uniformly applied to a surface of a film made of PMMA (5 cm x 5 cm) in a ratio of 0.75mg/cm 2 . After the film was allowed to stand still for 15 minutes, absorbance of each of the samples was measured by using a spectrophotometer (U-4100: manufactured by Hitachi, Ltd.). The results of the measurements are shown in Fig. 1 .
  • Examples 1 to 4 and 6 where an organic modified clay mineral was blended were improved in emulsion stability compared to Example 5 where the organic modified clay mineral was not blended.
  • composition (Example 1) where bis-ethylhexyloxyphenol methoxyphenyl triazine was blended in the form of an aqueous dispersion in a water phase exhibits an excellent ultraviolet absorption ability compared to Comparative Example 1 where bis-ethylhexyloxyphenol methoxyphenyl triazine was blended in an oil phase.
  • composition (Example 1) of the present invention where bis-ethylhexyloxyphenol methoxyphenyl triazine was blended in the form of an aqueous dispersion in a water phase exhibited a sufficient ultraviolet protective effect although a ultraviolet scattering agent was not added.
  • Formulation Example 1 Sunscreen milky lotion Decamethylcyclopentasiloxane 10 Isododecane 10 Polyoxyalkylene modified polysiloxane copolymer 1 Olefin oligomer 5 Dimethylpolysiloxane 5 Caprylyl methicone 2 Isopropyl myristate 2 Octyl palmitate 2 2-Ethylhexyl paramethoxycinnamate 10 Polysilicone-15 2 Hexyl diethylaminohydroxybenzoylbenzoate 3 An aqueous dispersion of bis-ethylhexyloxyphenol methoxyphenyl triazine 10 Hydrophobized zinc oxide 5 Cation modified saponite 0.5 1,3-Butylene glycol 5 Glycerin 3 Ion exchange water balance Fragrance q.s.
  • Chelating agent q.s. Formulation Example 2 Sunscreen milky lotion Dimethicone 15 Decamethylcyclopentasiloxane 5 Phenyl trimethicone 3 Polyoxyalkylene modified polysiloxane copolymer 1 Squalane 2 Cetyl 2-ethylhexanoate 2 Isononyl isononanoate 2 Pentaerythritol tetra-2-ethylhexanoate 2 Dimethylpolysiloxane 5 2-Ethylhexyl paramethoxycinnamate 5 2-Cyano-3,3-diphenylacrylic acid 2'-ethylhexyl ester 5 4-t-Butyl-4'-methoxydibenzoylmethane 3 Phenylbenzimidazole sulfonic acid 2 Aqueous dispersion of bis-ethylhexyloxyphenol methoxyphenyl triazine 15 Cation modified hectorite
  • Chelating agent q.s. Formulation Example 3 Sunscreen cream Decamethylcyclopentasiloxane 20 Isohexadecane 1 Polyoxyalkylene modified polysiloxane copolymer 3 Cetyl isooctanoate 10 Dimethylpolysiloxane 5 Glyceryl tri(2-ethylhexanoate) 2 Diisopropyl sebacate 2 2-Ethylhexyl paramethoxycinnamate 5 2-Cyano-3,3-diphenylacrylic acid 2'-ethylhexyl ester 3 Aqueous dispersion of bis-ethylhexyloxyphenol methoxyphenyl triazine 5 Methylene bis-benzotriazolyl tetramethylbutyl phenol 1 2-hydroxy-4-methoxybenzophenone 1 Ion exchange water balance 1,3-butyleneglycol 2 Dipropylene glycol 1 Cation modified bentonite 2.5 Hydrophobized titanium dioxide 1
  • Chelating agent q.s. Formulation Example 4 Sunscreen milky solution (not according to the invention) Decamethylcyclopentasiloxane 25 Dimethicone (1.5CS) 15 Polyoxyalkylene modified polysiloxane copolymer 2 Diisopropyl adipate 10 Caprylyl methicone 5 Alkyl (C 12-15 ) benzoate 4 2-Cyano-3,3-diphenylacrylic acid 2'-ethylhexyl ester 8 Aqueous dispersion of bis-ethylhexyloxyphenol methoxyphenyl triazine 12 Methylene bis-benzotriazolyl tetramethylbutyl phenol 5 (Dimethicone/vinyl dimethicone) crosspolymer 5 Ion exchange water balance 1,3-Butyleneglycol 2 PEG-400 1 Magnesium sulfate 0.5 Ascorbic acid-2glucoside 2 Hydrophobized titanium dioxide 1 Hydrophobized zinc oxide 2

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Claims (5)

  1. Zusammensetzung in Form einer Wasser-in-Öl-Emulsion, umfassend:
    (a) eine wässrige Dispersion von Verbundpartikeln eines ersten öllöslichen Ultraviolettabsorbers und eines organischen Polymers, welche in einer internen Phase (Wasserphase) enthalten sind, wobei es sich bei dem ersten öllöslichen Ultraviolettabsorber um bis-Ethylhexyloxyphenolmethoxyphenyltriazin handelt,
    (b) ein Polyoxyalkylen-modifiziertes Polysiloxan mit einem Molekulargewicht von 2000 oder mehr,
    (c) 5 Masse% oder weniger an einem Ultraviolettstreuungsmittel,
    (d) ein wässerquellbares Tonmineral in Kombination mit einem kationischen Tensid vom quartäres Ammoniumsalz-Typ, und
    (e) einen zweiten öllöslichen Ultraviolettabsorber, welcher in einer externen Phase (Ölphase) gelöst ist, wobei der zweite öllösliche Ultraviolettabsorber aus der Gruppe bestehend aus 2-Ethylhexylparamethoxycinnamat, Homosalat, Octylsalicylat, Oxybenzon, 4-t-Butyl-4'-methoxydibenzoylmethan, Octyltriazon, Methylen-bisbenzotriazolyltetramethylbutylphenol, 2-Hydroxy-4-methoxybenzophenon, Dihydroxydimethoxybenzophenon, Dihydroxybenzophenon, Tetrahydroxybenzophenon, Hexyldiethylaminohydroxybenzoylbenzoat, 2-Cyano-3,3-diphenylacrylsäure-2'-ethylhexylester, Polysilikon-15 und Drometrizolpolysiloxan ausgewählt ist,
    wobei der Gehalt an dem ersten öllöslichen Ultraviolettabsorber in der Zusammensetzung 0.01 bis 5 Masse% beträgt.
  2. Zusammensetzung nach Anspruch 1, wobei der zweite öllösliche Ultraviolettabsorber aus der Gruppe bestehend aus 2-Ethylhexylparamethoxycinnamat, 4-t-Butyl-4'-methoxydibenzoylmethan, Methylen-bisbenzotriazolyltetramethylbutylphenol, 2-Hydroxy-4-methoxybenzophenon, Hexyldiethylaminohydroxybenzoylbenzoat, 2-Cyano-3,3-diphenylacrylsäure-2'-ethylhexylester und Polysilikon-15 ausgewählt ist.
  3. Zusammensetzung nach Anspruch 1 oder 2, wobei der Gehalt an dem ersten öllöslichen Ultraviolettabsorber 0.01 bis 3 Masse% beträgt.
  4. Zusammensetzung nach einem der Ansprüche 1 bis 3, wobei das Polyoxyalkylen-modifizierte Polysiloxan ein Molekulargewicht von 6000 oder mehr aufweist.
  5. Zusammensetzung nach einem der Ansprüche 1 bis 4, wobei es sich bei dem Ultraviolettstreuungsmittel um Zinkoxid handelt.
EP11768811.9A 2010-04-13 2011-04-11 Wasser-in-öl-emulsionsverbindung Active EP2559426B1 (de)

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WO2017054184A1 (en) * 2015-09-30 2017-04-06 L'oreal Water in oil emulsions for caring for keratin materials
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WO2021035386A1 (en) * 2019-08-23 2021-03-04 Beiersdorf Daily Chemical (Wuhan) Co. Ltd. Sunscreen composition without cyclomethicones
CN114555047A (zh) * 2019-10-15 2022-05-27 花王株式会社 油包水型乳化化妆品
CN114867461A (zh) * 2019-12-24 2022-08-05 株式会社资生堂 油包水型乳化皮肤化妆品
KR20220163443A (ko) * 2020-05-14 2022-12-09 카오카부시키가이샤 유중수형 유화 선스크린 화장료
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EP2559426A2 (de) 2013-02-20
JP2011236201A (ja) 2011-11-24
US9034375B2 (en) 2015-05-19
EP2559426A4 (de) 2014-01-08
WO2011129290A2 (ja) 2011-10-20
TWI558415B (zh) 2016-11-21
TW201204399A (en) 2012-02-01
CN102858315B (zh) 2015-08-05
KR101395635B1 (ko) 2014-05-16
ES2641520T3 (es) 2017-11-10
WO2011129290A3 (ja) 2011-12-01
CN102858315A (zh) 2013-01-02
JP5058352B2 (ja) 2012-10-24
US20130022563A1 (en) 2013-01-24
KR20130048727A (ko) 2013-05-10

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